.middle > div {
    border: 1px solid gray;
}

.callus {
    display: flex;
    justify-content: center;

}

.callus > div {
    width: 700px;
    /*border: 1px solid red;*/
    display: flex;
    flex-direction: column-reverse;
}

.callus > div > div:nth-child(1) {
    font-size: 10px;
    /*字体居中,只能对字体有效，不能控制div*/
    text-align: center;
    margin: 30px 0;
}

/*我们会做的更好!WE WILL DO BETTER*/
.callus > div > div:nth-child(1) > div:nth-child(1) {
    display: flex;
    justify-content: center;
    align-items: center;
}

.callus > div > div:nth-child(1) > div:nth-child(1) > div:nth-child(1) {
    color: rgb(230, 145, 55);
    font-size: 10px;
}

.callus > div > div:nth-child(1) > div:nth-child(1) > div:nth-child(2) {
    color: gray;
}
/*----------map-------------*/
.container{
    height: 500px;
}
